AWP40-8540-T-R Equivalent & Substitute Parts

Part Overview

The AWP40-8540-T-R is a 40 Position Rectangular Socket Connector with IDC termination and tin contact finish, manufactured by Assmann WSW Components. This connector is designed for ribbon cable applications with feed-through capability and free-hanging in-line mounting. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Socket
Contact Type	Female Socket
Number of Positions	40
Pitch	0.100" (2.54mm)
Number of Rows	2
Row Spacing	0.100" (2.54mm)
Cable Termination	IDC
Wire Type	Ribbon Cable
Mounting Type	Free Hanging (In-Line)
Features	Feed Through
Contact Finish	Tin
Color	Gray
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AWP40-8540-T-R is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Socket with female socket contacts
Position Count & Pitch: 40 positions at 0.100" (2.54mm) pitch
Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
Termination Method: IDC (Insulation Displacement Contact) for ribbon cable
Mounting & Features: Free-hanging in-line mounting with feed-through capability
Environmental Compliance: MSL 1 rating and REACH unaffected status

The identified substitute parts maintain these core electrical and mechanical parameters, ensuring functional compatibility in ribbon cable interconnect applications.

Parameter Comparison

Parameter	AWP40-8540-T-R (Main)	AWP 40-8540-T (Direct)	CWR-220-40-0003 (Recommended)
Manufacturer	Assmann WSW Components	Assmann WSW Components	CW Industries
Connector Type	Socket	Socket	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	40	40	40
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Cable Termination	IDC	IDC	IDC
Wire Type	Ribbon Cable	Ribbon Cable	Ribbon Cable
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Features	Feed Through	Feed Through	Feed Through
Contact Finish	Tin	Tin	Tin-Lead
Color	Gray	Gray	Blue
Product Status	Obsolete	Active	Active
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

AWP 40-8540-T (Direct Substitute)

This part represents the direct equivalent to the obsolete AWP40-8540-T-R. It maintains identical electrical and mechanical specifications while offering active product status and improved availability (1916 units in stock versus 689 units). The AWP 40-8540-T carries RoHS3 compliance, providing enhanced environmental regulatory alignment compared to the original part. Packaging is supplied in tray format. This substitute is the primary selection for direct replacement applications.

CWR-220-40-0003 (Manufacturer-Recommended Alternative)

The CWR-220-40-0003 from CW Industries is designated as a manufacturer-recommended substitute. It maintains all critical electrical and mechanical parameters including 40-position IDC ribbon cable termination, 0.100" pitch, 2-row configuration, and feed-through mounting. The contact finish differs as tin-lead rather than pure tin, and the connector body color is blue rather than gray. This part carries RoHS non-compliant status. The CWR-220-40-0003 is actively produced with 797 units in stock, providing reliable long-term availability for applications where the contact finish and color variations are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the AWP 40-8540-T be used as a direct replacement for the AWP40-8540-T-R?

A: Yes. Both parts share identical connector type, position count, pitch, row configuration, termination method, and mounting characteristics. The primary difference is product status (active versus obsolete) and packaging format (tray versus unspecified). The AWP 40-8540-T is the recommended direct substitute.

Q: What are the differences between the AWP 40-8540-T and CWR-220-40-0003?

A: Both maintain the same 40-position, 2-row, 0.100" pitch IDC ribbon cable configuration. The CWR-220-40-0003 differs in contact finish (tin-lead versus tin), connector body color (blue versus gray), and RoHS compliance status (non-compliant versus RoHS3 compliant). Functionally, both are compatible with the same ribbon cable applications.

Q: Are there packaging considerations when selecting a substitute?

A: The AWP40-8540-T-R original packaging is unspecified. The AWP 40-8540-T is supplied in tray packaging. The CWR-220-40-0003 packaging is unspecified. Verify packaging requirements with your procurement or assembly process before final selection.

Q: Does the tin-lead contact finish of the CWR-220-40-0003 affect compatibility?

A: The contact finish does not affect electrical or mechanical compatibility with ribbon cable termination. Both tin and tin-lead finishes are suitable for IDC applications. Selection should be based on system requirements, environmental conditions, and regulatory compliance needs.

Q: What is the significance of the MSL 1 rating for these connectors?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture control requirements. All three parts carry this rating, meaning they can be stored and handled under standard conditions without special moisture-barrier packaging or baking procedures.

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